“Why is it that we entertain the belief that for every purpose odd numbers are the most effectual?”
Book XXVIII, sec. 23.
Naturalis Historia
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Pliny the Elder 31
Roman military commander and writer 23–79Related quotes

Existence (1956) p. 39; also published in The Discovery of Being : Writings in Existential Psychology (1983), Part III : Contributions to Therapy, Ch. 6 : To Be and Not to Be, p. 94
Existence (1958)
Context: It is interesting that the term mystic is used in this derogatory sense to mean anything we cannot segmentize and count. The odd belief prevails in our culture that a thing or experience is not real if we cannot make it mathematical, and that somehow it must be real if we can reduce it to numbers. But this means making an abstraction out of it … Modern Western man thus finds himself in the strange situation, after reducing something to an abstraction, of having then to persuade himself it is real. … the only experience we let ourselves believe in as real, is that which precisely is not.

“You have to be odd to be number one”

“Our purpose is to educate as well as to entertain.”
As quoted in The Sociology of Rock (1978) by Simon Frith
Context: Our purpose is to educate as well as to entertain. Painless preaching is as good a term as any for what we do. If you're going to come away from a party singing the lyrics of a song, it is better that you sing of self-pride like 'We're a Winner' instead of 'Do the Boo-ga-loo!

“To be prepared for war is one of the most effectual means of preserving peace.”
First Annual Address, to both Houses of Congress (8 January 1790).
Compare: "Qui desiderat pacem præparet bellum" (translated: "Who would desire peace should be prepared for war"), Vegetius, Rei Militari 3, Prolog.; "In pace, ut sapiens, aptarit idonea bello" (translated: "In peace, as a wise man, he should make suitable preparation for war"), Horace, Book ii. satire ii.
1790s

Speech about the Maldives, Interview with Mohamed Nasheed http://www.thedailyshow.com/watch/mon-april-2-2012/exclusive---mohamed-nasheed-extended-interview-pt--1, April 2, 2012.

Source: A Treatise On Political Economy (Fourth Edition) (1832), Book II, On Distribution, Chapter XI, Section I, p. 375 (See also: Thomas Malthus)

“A view of the unseemly actions of drunken men is the most effectual dissuasive from wine.”
As quoted in Diogenes Laertius, The Lives and Opinions of Eminent Philosophers, Chapter "Life of Anacharsis", 1702 edition, John Nicholson, p. 55